since then the napa river, napa creek protection project have made significant improvements to prevent that from happening again. but city officials say they are confident they can deal with the expected water flow. i went to downtown napa and not a lot of businesses open this early in the morning. at the coffee roasting company they had a theory. they were loit hearted and they tell us they live by the ed henderson rule. hoe says unless it rains for four days in a row, then it will flood. if it doesn't, it won't flood. there have been so many breaks in the storm they feel confident their city will be safe. reporting live in downtown napa, cara clapper, abc news. >> thank you, cara. >>> flood warnings are in affect for the russian river. early tomorrow morning the river is already running high and the ground is saturated. it is forecast to reach flood stage at 32 feet around 2:00 tomorrow morning. it is expected to crest at 35 feet around noon. the petaluma river may also reach flood stage within just a few hours. this video from friday shows an industrial avenue parking lot that is al